(?:
	(?:\s|^)
	vi
	(?:m[<=>]?\d+|m)?
	|
	[\t\x20]
	ex
)
(?=
	: (?=\s* set? \s [^\n:]+ :) |
	: (?!\s* set? \s)
)

(?:
	(?:\s|\s*:\s*)
	\w*
	(?:
		\s*=
		(?:[^\n\\\s]|\\.)*
	)?
)*

[\s:]
(?:filetype|ft|syntax)
\s*=
(MODE_NAME_HERE)
(?=\s|:|$)